*{ margin: 0; padding: 0;}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
#root{ height: 100%; width: 100%;}
.App{ height: 100%;}
.clearfix:after {
  content: "." ;
  display: block ;
  height: 0 ;
  clear: both ;
  visibility: hidden ;
  }
  .clearfix{ display: inline-block; }
  *html .clearfix{ height:1%; }
  .clearfix{ display:block; }
.fl{ float: left;}
.fr{ float: right;}
.main-layout{ height: 100%;}